Pope Sixtus IV

Pope Sixtus IV

Sixtus IV was the 212th pope and the fourth man to use the name Sixtus. He belonged to the Franciscan Order and was known for an inquisition that he launched at the behest of royalty. This article takes an in-depth look at the life and times of Pope Sixtus IV.

Early Life

Before becoming the pope, Sixtus III was an Italian man born to poor parents in Celle Ligure. Known as Francesco Della Rovere, he lived with his family in a small town close to the ocean. Though he expressed an interest in political work, he joined the Franciscan Order and began taking classes at the University of Pavia.

The Order elected him as the Minister General in 1464, which caught the attention of other orders. Pope Paul II named him a cardinal in 1467 and sent him to work in Vincoli.

Papal Election

When Pope Paul II passed away unexpectedly, the College of Cardinals quickly nominated Francesco for the role. They picked him because of his university experience and his work as a lecturer. He also gained a strong reputation for some of the treaties that he wrong, including On the Power of God.

Though his papacy officially began on August 9, 1471, he wasn’t consecrated until the 25th of that month. He chose the name Sixtus IV to recognize former popes who used the same name.


Sixtus IV quickly appointed many of his friends and family members to positions where they could assist him during his papacy. He also supported the crusade efforts in Smyrna to stop the Ottoman Turks from invading.

Some claimed that the pope was guilty of nepotism because of how many family members he appointed into new positions, including six of his nephews who became cardinals. One of his nephews, Pietro, used his uncle’s position to expand his fortune as he handled the foreign policies of the Church.

Slavery and Inquisition

Pope Nicholas V issued several papal bulls that allowed the Portuguese to enslave African men and women. Queen Isabel and King Fernando of Spain asked the pope to issue an inquisition because they wanted to take control of the Canary Islands.

This inquisition led to 90 men and horses to enter the island where they found that the natives retreated in fear. Sixtus IV later issued a papal bull that prohibited pirates and others from enslaving the Christians who lived on those islands. Historians believe that this was an attempt to force natives to convert to the Church or become slaves.


In the first week of August 1484, Pope Sixtus IV became sick. When he visited Rome on August 10, he was so ill that he canceled his existing plans and took to bed, where he was found dead two days later. The Sack of Rome n 1527 led to the destruction of his tomb and relics. St. Peter’s Basilica in Rome now has a monument dedicated to his honor that bears a relief of his face and body.

Events In The Life of Pope Sixtus IV ( Francesco della Rovere )

21 Jul 1414Born
20 May 146449.8AppointedMinister General of Order of Friars Minor
18 Sep 146753.1Elevated to Cardinal
20 Nov 146753.3AppointedCardinal-Priest of San Pietro in Vincoli
19 May 146954.8ResignedMinister General of Order of Friars Minor
9 Aug 147157.0ElectedPope (Roma, Italy)
25 Aug 147157.0Ordained BishopPope (Roma, Italy)
12 Aug 148470.0DiedPope (Roma, Italy)

Quick Facts About Pope Sixtus IV

  • Sixtus was born Francesco Della Rovere in Celle Ligure, which was part of the Republic of Genoa.
  • He was born on July 21, 1414.
  • Pope Sixtus IV died on August 12, 1484.
  • The pope was 70 when he died of natural causes in Rome.
  • His papacy began on August 9, 1471.
  • The papacy of Sixtus IV ended on August 12, 1482.
  • His successor was Pope Innocent VIII.

Interesting Facts About Sixtus IV

  • When the pope chose the name Sixtus IV, it was the first time that a pope had used that name since the sixth century.

  • Some modern historians believe that the pope was homosexual. They point to the close relationship he had with Giovanni Sclafenato as possible proof. The pope was close to the young man and appointed him to positions as both a bishop and cardinal. Rumors about their supposed relationship existed during the pope’s life.

  • Sixtus IV was a patron and lover of the arts. He helped endow the Vatican Library with new work and was known for giving funds to both artists and writers. That library now contains the complete archives of the Church. The pope also supported the building of the Sistine Chapel.

  • To help his family, the pope arranged a marriage between his nephew Giovanni and the daughter of a duke. The two had several children and added the Della Rovere family line, which lasted until the 17th century.

  • The television series Da Vinci’s Demons included a main character based on the pope played by James Faulkner. Faulkner would later appear as a character in the series Game of Thrones.